Protective casing for portable handheld electronic device



FIG. 1 is a front perspective view of the protective casing for portable handheld electronic device;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a left elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the figures depict boundaries of the claim and form no part of the claimed design. 

CLAIM The ornamental design for a protective casing for portable handheld electronic device, as shown and described. 